344728 has 16 divisors (see below), whose sum is σ = 662760. Its totient is φ = 168000.

The previous prime is 344719. The next prime is 344749. The reversal of 344728 is 827443.

It is a junction number, because it is equal to n+sod(n) for n = 344696 and 344705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198 + ... + 853.

2³⁴⁴⁷²⁸ is an apocalyptic number.

It is an amenable number.

344728 is a deficient number, since it is larger than the sum of its proper divisors (318032).

344728 is a wasteful number, since it uses less digits than its factorization.

344728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098 (or 1094 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 344728 is about 587.1354187920. The cubic root of 344728 is about 70.1173541676.

The spelling of 344728 in words is "three hundred forty-four thousand, seven hundred twenty-eight".